Sharpening device for edge-tools.



.L T E E H A. S T E E H `an 3 J. G.BESTGEN.

.SHARPENING DEVICE POR EDGE TOOLS.

APPLIUATION FILED JUNI: 1v, 1910.

L l @t Invevitor ,Wn-u7u mum. mw mh HHIIHHHH J. G. BESTGEN. SHARPENI'NG DEVICE FOR EDGE TOOLS.

APPLICATION FILED JUNE 17. 1910.

Patented Feb. 14, 1911.

a SHEETS-SHEET 2.4

m No l m E m6 E 1 L ZP w i e e ...uw M M J' G. BESTGEN.

l SHARPENING DEVIGE FOR EDGE TOOLS.

APPLICATION FILED JUNE 17. 1910.

Patented Feb. 14, `1911.

3 SHEETS-SHEET 3.

witimesses side frame'members 1 and 2, consisting here-.

JOHN G. BESTGEN, 0F QUINGY, MASSACHUSETTS.

SHARPENING DEVICE FOR EDGElTQOLS.

To all whom it may concern.'

Be it known that I, JOHN G. BESTGEN, a citizen of the United States, and a resident of Quincy, in the county of Norfolk and State of Massachusetts, haveinvented an Improvement in Sharpening Devices, for Edge-Tools, of 'which the following description, in connection with the accompanying drawings, is aspeciication, like letters on the drawings representing like parts. A

My invention relates to machines for sharpening andpolishing edge tools and has special reference to thattype of machine wherein traveling and rotatable sharpening members are employed.

` The embodiment of my invention selected for illustration and description herein is adapted especially for sharpening, stropping and polishing razor and similar blades, but

it may also be'conveniently used for knives .and lother edge tools.

In the drawings: Figure 1 is a front eleva,-

tion of my improved 'edge tool Sharpener, Fig. 2, aside elevation, Fig. 3, a plan of the same, Figs. 4 to 9 inclusive illustrate the manner of securing safety razor blades of different forms to the lower face of the holder, preparatory to adjusting the same in position for sharpening the blade, Fig. 10 illustrates one method of securing the' ordinary razor blade to a modified forni of the holder for the same purpose, Fig. 11 is a vertical section o n the line "1,1-11,=Fig. 10, lookingtowardthe right, Fig. 12 .is a side elevation of the work table showing a modified form of tool holder 'with a usual razor4 blade. secured-'therein and showing an edge view of a modiiedforrn of'cushion member adapted 'for use with the ordinary razory blade, ig. '13 is a' side elevation .of a modi# fied formo f machine wherein sharpening rollers or wheels are used in plac .of the belts, the work table being omitted and Fig. 14 a ,front elevation of the same partly' broken' awayfor convenience.

Referring to Figs. 1 and 2, the `construction shown therein comprises two 'similar in of upright sections 3-4 andbase sections 5 6, whic latter, in this instance, are shown as integral with said-upright sections, al-

though obviously they may besepa-ratemembers suitably lconnected thereto; These frame 4members la, and 2 may be connectedand secured by any convenient means, as .by `spac- Specification of Letters Patent. Application led .Tune 1 7, 1910. Serial No. 567,385.

Patented Feb. 14, 1911.

ing tie rods 7, 8, at the upper and lower ends .respectively of the upright sections 3, 4, Athereof and by atie plate 9 .at the forward Vend of the base sections 5, 6. The tie rods 7, 8, are herein provided with threaded reduced end portions 10-11, respectively, at

each end thereof,V inthe upper and lower ends respectivelyof said upright sections. The tie rods 7, 8, are secured to the frame members 1, 2, herein by meansyof nuts 12,

' 13, on the threaded ends of said'reduced end portions 10, 11, respectively. The forward ends of said base sections 5, 6 Figs. 1, 2, are properly spaced and connected by the tie plate 9 referred to, positioned between said ends and secured thereto by screws 14 threaded into the ends of said plate 9 and adjustable in. slots 15 A'in the ends of said sections i l 5, 6. Suitably mounted in said uprighuts 3-4, Figs. 1, 2,*are shafts 16, 17, carrying rollers or pulleys 1 8, 19 'and carrying also at vone of their ends suitable gear Wheels 2.0, 21, secured thereto in any desired manner and in mesh with eachother. wheels herein the upper one 20, may be provided with a crank 22, herein shown as secured, to one ofthe spokes 23 of said wheel 20 by a screw 24, the inner end of said crank being shown enlarged and drilled toV receive the end of the shaft 16 of said wheel 20` and" securedV thereon by any of the well known means for that purpose. On the opposite end of one ofj'said shafts, herein the upper one, 16, I have provided a pulley 25, adapted to be' connected by a belt with a suitable One of said sol source of power, and by--means of which said i gears 20, 21, and rollers `18, 19, in 'ay be rotated by power when hand operation 1s not desired. A detent 19 is provided to prevent rotationy of the gears 20, 21, in the wrong direction.

Auxiliary sharpening or belt carryingrollers 26, 27,t see Fig. 2,- of suitable material, herein wood, are provided, and positioned herein substantiallyopposite rollers-18, 19. The'sha-fts 28', 29of said belt carryingvrollers are journaled in the outer ends 30,31 of roller carrying arms 32, 33, adjustably secured through slots `36, 37, at their inner ends 34, 35, tothe ends 10, 11, ofthe tie rods 7, 8, referred to, by the nuts 12,-13. For a purpose to be referred to later. the roller. 26 issho' yn 'adjustably mounted in 'naling-.theshaft 28-'of saidroller in slots shown as belts 41, 42 are carried bythe roll,

ers 18, 26, and 19, 27 respectively, said belts being of any preferred material, herein leather. The roller carrying arms 32, 33, Fig. 2, are herein made adjustable relative to the uprights 1, 2, by providing the inner ends of said arms with the slots 36, 37 reerred to, so that' if either one or both of said belts stretches materially the slack therein may be taken up by adjustment oi said arms 32, 33, and. rollers 26, 27 thereon by simply loosening the nuts 12, 13, on the ends of said rods 7, 8. To aid in conveniently securing accurate adjustment of said arms and rollers, I have shown, Fig. 2, the inner ends ofthe arms'as outturned at 43, 44, respectively, and adjusting screws 45, 46,

threaded into outwardly extended bosses. 47,

48 on the upper and lower ends of said frame members 1, 2, and impinging against said outturned ends, 43, 44 of said arms.

.As a. support for the tool to be sharpened I have provided herein, Figs. 1, 2, tables 49 supported by posts 50, supported in turn byl the plate member 9. Each post is provided .witha head plate 51 secured by any suitable -ineans as by providing said plate 51 with an aperture on its lower face, not shown, and

securing the upper end of the post therein by means of a pin 52 at the inner edge of said plate. vTo presentyblades of. different width properly to 'the sharpening members 41, 42, the table 49,A Figs. 1, 2, may be adjust* ed upon said plate'51 longitudinally ofthe machine and relative to -the members 41, 42,

by means of set screws 53 threaded into the lower face of said table 49 and extended through longitudinal slots 54, shown in dottherein. (with bosses 58 at the points where it is drilled ted lines, Fig.1 2, `in the plate 51. By tight- `en lng said screws against the lower face of sald plate 51, the table 49 may .-be securely locked in desired position.- Each post 50 and its table 49 are adjustable'vertically upon said frame and lrelative to the rollers 26, '.27- and sharpening members 41, 42, by means of a thread. 55 uponthe lower portion of saidpost 50xwhich thread-is engaged by an adjusting' 'nut 56 thereon, andpositioned in a s lot'57 in said plate 9, said plate, Fig. 1, being also drilled vertically .to receive the post 50, which has preferably alsliding t Said plate 9' is. provided herein to receive thel posts 501 Each post 50-is also v.sect-ions 5MG, the

and tables 49 may also be longitudinally ad# provided with a lock nut 59 by means of which it may be securely locked in position in said plate 9 after adjustment. By loosening the screws 14 in the slots 15 in the base plate 9 and .its posts 50 justed relatively to the belts 41, 42, without separate adjustment of the table 49 relative to the post 50.

For securing the blade to be sharpened to the table 49 any suitable clamping means may be used but I have provided herein,

Figs. 1, 2, 3,l a blade lholding and locking member 60 comprising a substantially rec'- tangular body having a shank. 61 slotted at 62, to receive a screw 63 threaded in the up-`- per face ot said table. Said screw 63 is pro vided with a nut 64 by means of. which 'the blade holder 60 andA blade .locked therein may be secured in desire-d position on said table relative to 4the sharpening belts 41, 42. This blade`holder, like the work support 49, may of course be of any desired width, corresponding, if desired, to the width of the belts 41, 42. I have here shown the table 49 and blade holder 60 as. relatively narrow,

'and have shown a plurality of them mounted uniformly adjacent the sharpening belts. To lock the blades in the holderI have shown herein Figs. 3 to 9, the holder 60 provided, near its inner. edge 65 and near either end thereof, withright angle. slots 66 to receive blade clamping or gripping bolts or .screws 67, provided with work engaging heads or collars -68 near one end, herein the lower, and, see Fig. 3, having nuts 69 threaded on 'their opposite, herein upper, ends. The ends of said screws 67 preferably entendA through'anda little beyond the heads or colla-rs 68 thereon. ,These screws 67, see Figs. 4 to 9, areiattenedslightly on oppo site faces thereof to prevent them from turn- .ing in the slots'4 66, To provide a slightly yielding supportingmember for the blade and thereby compensate for any 'possible unevennessl in the surface of vthe sharpening belts, I prefer ,to` interpose a washer or cush ion member170, o f leather, or other suitable material, between'theblade holder 60 a'nd table 49. This washer 70 and the table 49 are shown as slotte-d, see Fig. 3', to receive the screws67. The lower' face 71 of the "holder is channeledat 72 to receive the re inforcing member 73 onqtheback edge of certain forms ofsafety razor blades, when clamped to the holder.

In Figs. 4 to 9 inclusive, I have4 shown razor blades of dierent forms secured to the lower face of the holder 60.

The blade shown in Fig. 4 isa single edge plain blade of substantially uniform thiek-O ico ness and is secured in position adjacent the I `lower face 71 ofthe holder by positionin the ends of the 'blade between the screws 6 and beneath' the heads of said screws,

65, face 78 of the cam 38.

which heads are then tightened against the lower face of the blade by means of the nuts v.69, Fig. illustrates the method of locking in 5 positionthe well known Gillette double edge blade. In this case the screws 67 are positioned at or near the inner ends of the lateral arms of the slots 66 and at' such points that theywill receive over their inner ends re-v spectively two of the apertures in the blade. These screws firmly hold the blade against lateral displacement when locked between the holder 60 and table 41:9.`

Fig. 6 illustrates the manner in` which asafety razor blade provided with a shoulderatv each end may be secured to the holder. In this case the screws 67` are adjusted to such positions in the longitudinal arms of the slots 66 that each screw will enga-ge one lof the shoulders on the blade, and hold it against lateral displacement. t"

The blade shown in Fig. 7 is provided with curved notches at its ends." In this case4 the screws 67 are adjusted in the longitudi- 'nal arms of the slots to engage the4 corners of said slots. I v

In Fig. Sis sho-wn a blade provided with a lrein-forcing member 73 on one. or. 'both faces, atits back edge.. *In- `this Vcase the blade is positioned with the inner edge 74 `ofthe reinforcing member 73 against the outer wall .7 5 of the channel 72 in the lower face of the; holder. In Fig. 9v is showny a similar-, blade provided with a wider Vrein- Vforcing mcmberf73. Inl this-'ease the back edge 76 of the reinforcing member is posi" tioned against the inner wall 77 of the chan!A nel 72./ i, In each of the foregoingcases after the `40 blade is clamped to the lower `face of the -holder,. the holder is'turned right sidey up. andis so positioned relative to the belts,`by means of the slet v62, that the edgefof the blade will be properlyA engaged thereby and isv .45 then* locked in position by meansofthe nut In .order-'that inexperienced. persons may properly 'position Vthe blade without danger y of cutting the belts, I have shown the upper roller 26 adjustable in the arms 32.` This adjustment is accpmplished` by means of the slot v30v referred to, i`n which the shaft of said roller is j ournaled. Vhen the blade is to be adjusted one simply raises thecams 38 at each end of theshaft ofthe roller 26 'by means ofthe linger pieces 39 thereon, thus permitting him to raise the shaft of the roller 26 slightlyinthe'slots 30 so that the ledgel of the blade may be yproperly posi- Ationed between the members 41, 4 2, without 60. danger of cutting either of them. The roller "'26 is then returned to its proper position vby pressing down on the finger pieces 39 thus forcing "the ends ofthe shaft 28 backy holder 60 itis provided with additional ofthe blade andare tightened up. The end 'screw 67is then tightened up and the blade,

' to their proper positions by vmeanswof the In Fig.-10 I have shown the manner of locking the' ordinary razor blade to the lower face of the holder` which,l for `this type of blade of slightly diiferent construct-ion. The body of the holder is provided at one end thereof in this case, see Figs. 10, 11, with 'a downwardly and laterally turned tool engaging member 79 adapted to engage the hilt of Jehe liladeat its inner face. At its opposite end the holder is provided with a. laterally extended slot 66 in which is provided a blade gripping screw'67 likethat shownin `Figs. 4, and 7 inclusive, provided in turn at its lowerv end with an int-urned blade sup? porting linger 60. At the back edge of said slots 66, provided in turn each witha blade gripping screw 67. The holder 60 is' also provided with lShanks 61, slotted at 62 as shown in Figs. 4c to 10. When this type Vof'ey -crazor blade is to be locked in the holderthe hilt ofthe blade is .positioned with the inner side thereof against 4and beneath the. downturnedmember 7 9 with the opposite end of the `blade beneaththetinger 60a of the 90 screw 67 at the end of the holder. The screws 67 at the back ofthe holder are then adjusted in positions toengage the back 8O will be securely locked in the holder.` The holder is ,then adjusted to its proper position on the table 49 and secured thereto by the screw 63 and nut 64e thereon." In order to furnish vsupport for the vconcave lower vface of the razor-'shown in Figs. 10, 11,` I pro. vide a cushion niember'O in this case with a raised section '81,` See Fig. 12, adapted'to lit-said concave face ofthe blade and give it the required support.

In Fig. 13,1 have shown a modified form vof machine wherein the belts 4:1, 42, 'are dispensed with and the toolis acted upon by suitable sharpening and polishing mediums 82, as leather, on the Arollers or wheelsl 26, 110

.27., In this case the rollers v26, 27, are each provided with asuitable wheel or'pulley -83 to which lmotionis transmitted by suitable means, as belts 84 from pulleys or wheels 85 secured respectively to the shafts 16, 17. i In this manner the rollers or wheels 26, 27, are

rotated in the same direction 'as the belts 41', 42, Fig. 3, and of course the blade or tool may be" positioned relative thereto by means of the adjustable blade holder 60,iscrew 63 and nutfl, asin the case of the ,said belts 41, L42, and4 also by Vmeans of the screwflll in the A f slot 15. I prefer, however the` belts or fsimilar. members to the vrollers as they furnish alonger contacting section on account of their flexibility and'give a ybetter edge to t the tool.

``Bytheuse of my improved sharpiener vor stro per one may sharpen the blade of' a kni e, razor'or similar article in a ,few sec-'.9130

" periodv by hand in the old Way. When the 'may' be madevvvithout departing from the blade is stropped Aand alternately turned, in the old Way, it is almost impossible to bear with the same pressure on each side of the. beltin turn, vand this results in one side of the edge Ybeing sharpened more than the other.` Ablade thus unevenly sharpened will ,notcnt satisfacto-rily. f j' Various modifications of` i'ny invention spirit thereof.

Claims: s ,K

l. In a machine of the class described a frame; traveling Working members thereon, means toimpart motion thereto', and longitudinally and vvertically adjustable supporting means for said Working members. 'v

2. In a machine ofthe class described a frame` oppositely disposed traveling vvorl-r ing .members carried thereby, a Work support and a combined Work holding and locking melnber provided Withcombined positioning ,and holding `means to engage the edgcof and hold a cooperating portion of the blade alo-ng one face thereof to present both faces of the edge of the b-lade simultaneously to said Working members.`

3. In'a machine vof the class described a y frame, oppositely disposed Working members carried thereby, a Work support and a; vcombined Work holding and locking mmber provided with combined positioning and Vgripping members capable oflateral andv longitudinal traveling adjustment thereon to position and grip a -blade ata of points on7 one face thereof.

4. In -a machine of the classy describeda` frame, Working members thereon, means'to 'impart motion thereto, longitudinally and vertically adjustable supporting means for saidworking members, and additional means on said supporting means permitting independentadjustment of said Working members relative to each other, to said frame-'and J to said 7supporting'meaiis to facilitate positioning-ofa tool to said Working members.

5; Ina machine ofthe class described a frame, oppositel'y disposed Working members carried thereby, a Work support anda combined Work holding and locking member provided with` combined positioning and thereof. Y

gripping members capable of lateral and longitudinal traveling adjustment thereon Y to position, extend through and grip a blade at a point on the face vof the blade.

6. vIn va, machine ofthe class .described 'a frame, oppositely disposed ,Working members carried thereby, a'vvork support anda combined Work holding and locking emember,

provided with tyvoway positioning. and adjustable gripping membersto grip a blade at a plurality of l points on the periphery plurality 7. In a machine of the class described a frame, oppositely disposed Working members carried thereby, a Work support and a combined Work holding and locking member provided With two-Way positioning'and adjustable gripping members to grip a blade at each en d thereof.

8. In a machine of the class described a frame, oppositely disposed Working members carried thereby, a Work support and a combined .Work holding and locking member provided With ,twofvvay positioning and adjustable gripping members to extend through and-grip ablade ata point on the face of the blade.

9. In la machine` oftheclass described a frame,.oppositely disposed traveling Work` ing members carried thereby, a Work sup,

port, and a'combined Work holding and Ilocking member adjustable relative to said support provided with gripping means and adapted to lock a blade between said support and said holder to simultaneously present botlrfaoes of the edge of the blade substantially at the contacting'point of said traveling members.

l0.A In a machine Yof the class described frame, oppositely disposed adjustable Working members carried thereby, a Work 'support, a combined Worlt holding and locking member adjustable relative to said support, provided with gripping members and adapted to extend through and lock a blade between said support and said'holder.

1l.l In a machine of the class described a frame, op-positely disposed adjustable Working members carried thereby, a Work supportya combined Work-holding and locking member adjust-able relative tosaid support, providedvvith gripping members and ada-pted to lock a blade between said support and saidholder, .and means to adjust one of said sharpening and polishing members in its journal bearings relative to `the opposite sharpening yand polishing member.

' 12. In a machine ofthe classdescribed a frame, oppositely disposed-adjustable Working members carried thereby, a Work sup-l port, a combined Work holding vand locking member adjustable relative to said support, provided vvithlongitudinally and laterally adjustable jgripping members and adapted- -to lock a blade between said .support and said holder,'a nd means to adjust one of said 'sharpening and polishing members in its journal bearingsfrelative to ssaid Work supj' port.

In testimony vvhereof, I vhave signed my name to this specification, in the presence of tvvo subscribingr witnesses.

, JOHN Gr. BESTGEN..

.Witnessesz ROBERT. II. KAMiv'ILiiR, Evuim'rr S. Eimer.' 

